Internet Protocol Over WDM Network and Packet Communication System and Method in the IPOW Network

摘要

PURPOSE: An IPOW(Internet Protocol Over WDM) structure is provided to route and transmit a high speed packet for satisfying a bandwidth and a QoS(Quality of Service), so as to easily perform a network configuration. CONSTITUTION: Sub-rings(26) connect n terminals having allocated inherent use wavelengths. A main ring(23) connects n connection nodes having allocated inherent use wavelengths which are connected with the sub-rings(26). A sub-ring control system(24) is located between one sub-ring and the main ring(23), and controls a packet stream transceived within the sub-ring and a packet stream transceived between the sub-ring and the main ring(23). A main ring control system(22) controls a packet stream transceived within the main ring(23). The terminals and the connection nodes add and drop signals of the inherent use wavelengths only. The sub-ring control system(24) and the main ring control system(22) drop and demultiplex entire WDM(Wavelength Division Multiplexing) signals of the sub-rings(26) and the main ring(23), and load the WDM signals into an inherent use wavelength of a destination terminal, then multiplex the WDM signals to transmit the WDM signals to the sub-rings(26) and the main ring(23). The sub-ring control system(24) adds an identification code of a sub-ring included in the destination terminal to a transmission packet, and transmits the WDM signals to the main ring(23).